Improvement of LEACH for fault tolerance in sensor networks

Mohamed Lehsaini (1) , Hervé Guyennet (2)

1 STIC - Systèmes et technologies de l'information et de la communication
2 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)

In wireless sensor networks, failures occur due to energy depletion, environmental hazards, hardware failure, communication link errors, etc. These failures could prevent them to accomplish their tasks. Moreover, most routing protocols are designed for ideal environment such as LEACH. Hence, if nodes fail the performance of these protocols degrade. In this context, we propose two improved versions of LEACH so that it becomes a fault-tolerant protocol. In the first version, we propose a clustered architecture for LEACH in which there are two cluster-heads in each cluster: one is primary (CHp) and the other is secondary (CHs). In the second version, we propose to use the checkpoint technique. Finally, we conducted several simulations to illustrate the performance our contribution and compared obtained results to LEACH protocol in a realistic environment.

Domaines: Informatique ubiquitaire; Réseaux et télécommunications [cs.NI]; Calcul parallèle, distribué et partagé [cs.DC]

Mohamed Lehsaini, Hervé Guyennet. Improvement of LEACH for fault tolerance in sensor networks. CIIA 2013, 4th Int. Conf. on Computer Science and Its Applications, Jan 2013, Algeria. pp.175 - 183. ⟨hal-00932082⟩